Rabbit Fish Chimaera is connecting link between

Options

A. Cartilaginous and bony fishes
B. Bony fished and lung fished
C. Lung fished and amphibians
D. Cyclostomates and chondrichthyes

Answer

**Step-by-Step Solution:**

1. **Identify the Subject**: The question asks about the Rabbit Fish Chimaera and its role as a connecting link between two groups of fish.

2. **Define the Terms**:
- **Rabbit Fish Chimaera**: A type of fish that exhibits characteristics of both cartilaginous and bony fishes.
- **Connecting Link**: An organism that shows traits of two different groups, indicating evolutionary relationships.

3. **Characteristics of Cartilaginous Fishes**:
- They have a **ventral mouth**.
- Their skeleton is made of **cartilage** (endoskeleton).
- They possess **claspers** in males.
- They typically have **two dorsal fins**.

4. **Characteristics of Bony Fishes**:
- They have **four pairs of gills**.
- They possess a **small mouth** with **fleshy lips**.
- The **cloaca** is absent in bony fishes.

5. **Comparison of Characteristics**:
- The Rabbit Fish Chimaera exhibits characteristics of both groups:
- From cartilaginous fishes: ventral mouth, cartilaginous endoskeleton, claspers, and two dorsal fins.
- From bony fishes: four pairs of gills, small mouth with fleshy lips, and absence of cloaca.

6. **Conclusion**: Based on the characteristics, the Rabbit Fish Chimaera serves as a connecting link between **cartilaginous fishes** and **bony fishes**.

7. **Final Answer**: The Rabbit Fish Chimaera is a connecting link between cartilaginous fishes and bony fishes.

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